434 PELOBATID^. 



Vomerine teeth ou a level with the hinder 

 edge of the choanse ; a large gland in 



the upper integument of tibia 7. muUipUcatus, p. 436. 



2. Eustachian tubes exceedingly mi- 

 nute, much smaller than the 

 ohoanse 8. stagnalis, p. 436. 



1. Scaphiopus solitarius. 



Scaphiopus solitarius, Giinth. Cat. p. 38. 



SoapMopus sohtarius, Holbr. N.-Amer. Herp, i. p. 85, pi. 12, & 2nd 

 edit. IV. pi. 27 ; Tschudi, I. o. ; Bum. $ Bibr. p. 473 ; Leeonte, 

 Proc. Ac. Philad. vii. 1855, p. 429 ; BroocM, Bull. Sob. Philom. (7) 

 iii. 1879, p. 23, and Miss. So. Mex., Batr. p. 28, pi. 9. f. 3. 



Eana holbrookii, Harlan, Med. Pes. p. 105. 



Scaphiopus holbrookii, Baird, Pep. Expl. Surv. iv. Rept. 1859, 

 pi. 28. f. 1 ; Cope, Proc. Ac. Philad. 1863, p, 54. 



Tongue subcircular or oval, nicked behind. Vomerine teeth in 

 two small groups on a level with the hinder edge of the choanse. 

 Snout rounded, with indistinct canthus rosfcralis ; nostril nearer the 

 tip of the snout than the eye ; interorbital space as broad as, or a 

 little broader than, the upper eyelid ; upper surface of head bony, 

 rough ; tympanum distinct, half the width of the eye. Pingers 

 short, with a rudiment of web, first a little longer than second; 

 toes short, webbed to the tips; subarticular tubercles indistinct; 

 three metacarpal tubercles ; metatarsal shovel longer than first 

 toe. The hind limb being carried forwards along the body, the 

 tibio-tarsal articulation reaches the shoulder or the tympanum. 

 Skin of back minutely tubercular, of sides more coarsely ; a small, 

 rounded, prominent parotoid gland ; a small, rounded, porous gland 

 on each side of the thorax near the axiUa ; beneath nearly smooth. 

 Brownish or olive above, marbled with darker ; edge of the meta- 

 tarsal shovel black. Male with a subgular vocal sac, and during 

 the breeding-season black rugosities on the inner side of the first 

 two fingers. 



United States. 



2. Scaphiopus conchii. 



Scaphiopus oouohii, Baird, Proc. Ac. Philad. vii. 1855, p. 62, and 

 U.S. §• Mex. Bound. Surv. ii. 1859, Sept. p. 28, pi. 85. f. 1-6; 

 Cope, Proc. Ac. Philad. 1868, p. 62; Brocchi, Miss. Sc. Mex., 

 Batr. p. 26. 



varius, Cope, I. c. p. 62 ; Brocchi, I. c. p. 27. 



Tongue subcircular, slightly emarginate. Vomerine teeth be- 

 tween the ohoanse or opposite their posterior border. Snout promi- 

 nent; canthus rostralis obsolete; upper surface of head bony, 



